Egyptian police have stopped an attempt to expand a modern graveyard right next to the ancient site of Dahshur, home of the Bent Pyramid, Ahram Online reports.

The pyramid had already been damaged earlier this year by the encroaching cemetery. Authorities stopped construction at that time, but now new incursions are threatening the site. In the more recent incident, police arrested one man and are looking for three more.

The pyramid, which reopened to the public in 2009 after many years of being closed, is believed to have been built by the Pharaoh Sneferu. It gets its name from the fact that its upper portion slants at a different angle from the lower portion. Egyptologists believe that as the structure was being built, engineers changed their design out of fear that it would collapse. As a result, the bottom part of the pyramid rises up at a 55º angle, then transitions to 43º as it nears the top.

Dahshur is a royal necropolis and several other pyramids and tombs are in the area.

This is just one of a series of incidents that are threatening Egypt’s priceless ancient heritage. Continuing political chaos and a lack of sufficient security are making archaeological sites easy prey for “developers” and looters. Last month an entire museum was looted. Most artifacts were stolen. Those that couldn’t be moved were destroyed, with vandals smashing statues and burning mummies. The economic crisis in Egypt is fueling much of the theft, and a rising Islamist movement that has no respect for pre-Islamic cultures is creating an atmosphere of callousness.